did you find solution for that? I get the same error, b/c I am trying to use in spring project 3.0 richfaces 3.3.3. Final and JSF 2.0 on jboss 5.1.0. And it works for me as same as your app, so that application is working, but jboss 5.1.0. throws this exception:

3:49:39,301 INFO [lifecycle] JSF1027: [/feisPortal] The ELResolvers for JSF were not registered with the JSP container.

Did you solve anything to this exception. Even we are also facing same problem. please assist on this. i am using richfaces 3.3.3 + jsf2+jboss 7. i dont want to upgrade to richfaces 4. please tell us with rcihfaces3+jsf2.